Sash lock



-R. F. MORRISON.

SASH LOCK. APPLICATION FILED FEB. 25| I920.

I1,412,062. Patented Apr. 11, 1922.

UNITE yS ROBERT r. MORRISON, or BATILEOREEK. MICHIGAN..

sAsH LOOK.

To alt whom 'it mag/.concerns Be 1t known that I, ROBERT F. MORRISON, a citizen of the United States, residing at Battle Creek, in the county of Calhoun andv State of Michigan, have invented certain new and useful Improvements in Sash Locks, of which the following description, with appended claims, taken in connection with the accompanying drawing, forms a specificat1on.

The present invention relates to sash locks in which a mortise is formed within the window sash and carries an eccentric .dog for engaging the window j amb, and the primary object of the invention is to provide a lifting knob connective with the sash stop whereby said stop maybe released in its engagement with the window jamb, Vand also afford means whereby the window sash may be more readily elevated or lowered. An-` other object of thejinvention lis to insurethe action of the stop within itself after aV Window sash has been raised unless acted windowsash thatits appearance will not be unsightly nor the stop itself greatly hin-l der in either finishing the woodwork or washing the same. Y

With these and other objects in view, my invention consists in the novel features of construction, combination and arrangement of parts which willV behereinafter referred to and more particularly pointed out in the following specification and claims. j

In the accompanying drawings, Figure 1 is a broken side section ofa window jamb and window sash` a portion ofthe sash and sash lock being broken away to show the interior 'mechanism of the sash lock.

Fig. 2 is a detail edge view of a window sash with my improved sash lock fitted thereto. v

Fig. 3` is an end view of my improved sash lock.

Fig. 4 is a broken detail of the locking dorfy with rubber inserted tip.

Fig. 5 is a plan view of Fig. 4.

Fig. 6 is a plan View of a modified form of a rubber or other friction tip or pad used as the locking dog.

In the drawings, like marks of reference refer to corresponding parts in the different views in which A represents a window j amb, and B, a window sash.

The window sash B is provided with a for. i

Specication of Letters Patent. Patelli-,-gdl 'Apr'. 11, 1922. Application ined February 25, 1920.V seriaiNo. 361,098. l y

locking dog 4 operates and has two rounded ends 5 through which screws 6 are inserted and screwed Into the window sash B to sesure the same thereto.

ing aligned holes through which gudgeons 8 and 9 forni an axle on which the dog 4 is operate/d.' The gudgeonor bearing of the.y Y

on the side of the sash withina room do is gformed by areduced VVend'Q of an operatthrough a hole inthe sash provided there- The' dog 4 a diagonally downward direction toward the window jamb A and is formed with a face eccentric with its axle, and by preference the face ofthe dogcarries a cushion surface of rubber, 11, or equivalent'material.

The cushion is for the purpose,` of affording perfect non-slipping Contact yof said dog with the window jamb, and also yprecludes scratching orv marring ofthe woodwork. It also renders the'foperation of 'the' sash lock noiseless. That the dog 4 will always grip the window jam'b when thesash hasmbeen' elevated and released by the operator, a coil s rino 2 is coiled about the axle of said doov 2D D and one end of said Spring anchored within a ,detent or hole in theside of the frame 2, its opposite end hooked under or lodged Vwithin a hole in the side of said dog, the

arrangement of the spring being such as will exert a lifting effect on the dogand keep the same in contact with the window jamb.

In Fig. 4 the dog is formed with an undercut recess or groove 13 providing ananchorage for a depending rib 14 of the rubber facing 11, whilst in the views shownin Figs. v1, 2 and 3, the facing is of a uniform thickness, having four ears 15, (shown in outline in Fig.v 6), said ears when the'facing is fitted on the face of the dog, bent downwardly and secured by small rivets 16. The aforesaid means of attaching the cushion 'surface to the face of the dog is to ini sure a more enduring method than would be This frame also is' formed with oppositely-disposed sides 7 havy. 65

ing andlifting knob 10, the, gudgeon. being;V

screw-threaded into the dog for the purpose Vof readily permitting said dog to be introduced into its frame,.the knob operating in operative position extends iny its jamb, the same may be raised in the ordinary manner or the saine may be elevated by pushing upwardly on the sash top girt and with the other hand lifting on the knobY ings, a more extended explanation4 of the objects and advantages of my invention is believed not to be necessary.

Having, therefore, set forth my invention, what I claim as newand desire to secure by Letters Patent, is

I In a sash lock, the combination with the window jamb and a sash slidably movable therein, said sash Ahaving a mortise in an edge abutting said jamb, a bracket carried within said mortise, a gndgeon journalled in said bracket extending through one side of said sash, an eccentric dog` affixed to said gudgeon and adaptedv to lock with said window jamb when said" sash is lowered and to release said window jamb when said sash is elevated, and a knob on said gudgeon to actuate said eccentric dog as expedient.

2. In a sash lock, the combination of Van eccentric-shaped dog having a centrally-disposed longitudinally-undercut face, and a friction pad of rubber or equivalent material havingy a depending rib adapted to interlock within said longitudinally-undercut face7 as and for the purpose set forth.

In a sash lock, the combination with a window. amb7 a sash slidably mounted thereinn the sash having a .inortise in its edgeand a housingbracket carried inV said mortise, of a gudgeon journalled in said bracket, an eccentric dog atlixed to said gudgeon adapted to lock with said window jamb in the lowering of said sash and to re-` lease said window jamb when said sash is elevated.

et. In a sash lock, the combination with a window jamb, a sash slidably mountedf therein, the sash having a mortise'in'it's edge and a housing bracket carried in said mortise. of an operating gudgeon'journalledI in said bracket extending through said' sash, an eccentric dog operative from said gudgeon and adapted to bear against said jamb in a down and outward direction froml said gudgeon whereby said dog will l'ork with said jamb unless released' therefrom, in the downward movement Vof vsaid sash,

In a sash lock, the combination with a window jamb7 a sash having a niortise in* its edge and slidably movable in' said amb, a housing fra-me carried in said'E mortise, of1 an eccentric-shaped'dog having a gudgeon on oneside adapted to sea-t in a sideliole in said frame, lan operating'knob extending' through the opposite side of saidy iframe having a reduced threaded end screw threaded into the opposite side of said dbg forming an oppositely-disposed gudgeon, said' dog adapted to project from'said frame to engage said jamb, and 'means to yield; ingly hold said dog against said Vja1nb for the purpose set forth.

ROBERT l?. MORRISON.

Witnesses WAXWELL B. ALLEN, HELEN M. SMITH. 

